Home / 20,750,589.50-28,638,338.22-12,048,761.84

Finding the Fourth Proportional to 20,750,589.50, 28,638,338.22 and 12,048,761.84

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Solution

The fourth proportional to 20,750,589.50, 28,638,338.22 and 12,048,761.84 is: 16,628,757.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,750,589.50 : 28,638,338.22 = 12,048,761.84 : x
  2. Step 2: Convert to fraction form
    20,750,589.50/28,638,338.22 = 12,048,761.84/x
  3. Step 3: Cross multiply
    20,750,589.50x = 28,638,338.22 × 12,048,761.84
  4. Step 4: Simplify right side
    20,750,589.50x = 345,056,516,562,957.88
  5. Step 5: Solve for x
    x = 345,056,516,562,957.88/20,750,589.50
  6. Step 6: Final answer
    x = 16,628,757.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.